Dongguan Hongrong Electrical Machinery Co.,Ltd

High quality products and professional service are the core suppliers of the machinery industry.

Home > Knowledge > Content
Cable making problem in production and how to resolve
- Apr 21, 2018 -

Often there is some problem in ordinary cable production, how to resolve these problem very important for finished cable quality.


Cable making problem , reason and resolution:

(1)All plasticization is not good (surface is powdery, dull and matt)

Reason:

Extruder barrel (screw) temperature not enough

Resolution:

Appropriately  increase extruder barrel (screw) temperature.


(2)Part plasticization is not good (the surface is not smooth, like orange peel)

Reason:

Screw LD small or screw rotational speed too fast

Resolution:

Lower the screw rotational speed.


(3) Bad seam

Reason:

Crosshead temperature not enough or barrel temperature too high, the material viscosity is small, the pressure is insufficient.

Resolution:

Appropriately increase crosshead temperature or lower barrel temperature.


(4) Foaming, old plastic and particles

Reason:

Extruder barrel or crosshead temperature too high, or there is material in gap or dead corner of crosshead or extruder screw.

Resolution:

Appropriate lower barrel or crosshead temperature, clean crosshead and screw.


(5) Air bubble

Reason:

Extruder barrel or crosshead temperature too high cause the material overheat decomposition, precipitation of gas, or material is wet or use wrong material.

Resolution:

Adjust temperature, clean crosshead, change material or dry material first.

factory_副本.jpg